Magma storage and transport timescales for the 1959 Kīlauea Iki eruption and implications for diffusion chronometry studies using time-series samples versus tephra deposits

Lynn, Kendra J.; Helz, Rosalind Tuthill

doi:10.1007/s00445-022-01618-9

Cited by 4 publications

(1 citation statement)

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“…For the "1631" sub-Plinian eruption of Vesuvius, it has been reported by historical chronicles (without quantification) that a significant and visible uplift of the crater bottom occurred about a month before the eruption, while various intracrateric rockfalls started about a year earlier 63 . By further widening discussion, at Kīlauea (United States) which is a volcano very different from Vesuvius, timescales of ~3 months have been found for unrest and inflation to occur prior to a lava fountaining eruption, while the magma recharge into the reservoir started even well before 64 . At Krafla (Iceland), another volcano different from Vesuvius, magma accumulated in the reservoir generating a ground inflation for timescales usually <1 year before having dykes propagation in basaltic fissural eruptions 65 .…”

Section: Discussionmentioning

confidence: 99%

Magma reservoir growth and ground deformation preceding the 79 CE Plinian eruption of Vesuvius

Doronzo

Trasatti

Arienzo

et al. 2023

Commun Earth Environ

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The 79 CE eruption of Vesuvius is the first documented Plinian eruption, also famous for the archaeological ruins of Pompeii and Herculaneum. Although much is known regarding the eruption dynamics and magma reservoir, little is known about the reservoir shape and growth, and related ground deformation. Numerical modelling by Finite Element Method was carried out, aimed at simulating the reservoir growth and ground deformation with respect to the reservoir shape (prolate, spherical, oblate) and magma overpressure. The modelling was tuned with volcanological, petrological and paleoenvironmental ground deformation constraints. Results indicate that the highest magma overpressure is achieved considering a prolate reservoir, making it as the most likely shape that led to eruption. Similar deformations but lower overpressures are obtained considering spherical and oblate reservoirs. These results demonstrate that ground deformation may not be indicative of eruption probability, style/size, and this has direct implications on surveillance at active explosive volcanoes.

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Section: Discussionmentioning

confidence: 99%